<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <meta http-equiv="X-UA-Compatible" content="IE=edge">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>Document</title>
</head>
<body>
    <table border="1px" width="500px" height="200px" cellspacing="0px">
        <tr>
            <td>1</td>
            <td>2</td>
            <td>3</td>
            <td>4</td>
            <td>5</td>
        </tr>
        <tr>
            <td rowspan="2">6</td>
            <td colspan="2">7</td>
            <!-- <td></td> -->
            <td>8</td>
            <td>9</td>
        </tr>
        <tr>
            <!-- <td></td> -->
            <td colspan="4">10</td>
            <!-- <td></td>
            <td></td>
            <td></td> -->
        </tr>
        <tr>
            <td>11</td>
            <td colspan="2">12</td>
            <!-- <td></td> -->
            <td colspan="2">13</td>
            <!-- <td></td> -->
        </tr>
    </table>
</body>
</html>